array preg_split ( string $şablon , string $konu [, int $sınır = -1 [, int $seçenekler = 0 ]] )
<?php
$string = 'one, two,three, four , five,six seven';
$array = preg_split("/[\s]*[,][\s]*/", $string);
print_r($array);
// Array ( [0] => one [1] => two [2] => three [3] => four [4] => five [5] => six seven )
?>